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中国化学（英文版）
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2026年16期
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A Modular Blending Strategy for Synergistic Tuning of Microstructure and Performance in Organic Electrochemical Transistors
A Modular Blending Strategy for Synergistic Tuning of Microstructure and Performance in Organic Electrochemical Transistors
摘要
The rapid advancement of organic mixed ionic-electronic conductors(OMIECs)has driven steady improvements in organic electro-chemical transistor(OECT)performance.However,achieving an optimal balance between charge-carrier mobility(μ)and volumetric capacitance(C*)remains a fundamental challenge,particularly when relying on chemical copolymerization strategies to fine-tune glycolated side-chain content.Such approaches are often hindered by synthetically demanding routes and pronounced batch-to-batch variability,which impede the establishment of robust structure-property relationships.Herein,we introduce a physical blending strat-egy:glycolated and alkylated donor-acceptor(D-A)polymers are blended across a compositional gradient to yield a series of films with systematically varied hydrophilic/hydrophobic side-chain ratios.We comprehensively investigate how the blend ratio governs electro-chemical doping kinetics,nanoscale film morphology,and OECT device metrics.Critically,varying the glycolated/alkylated polymer ra-tio induces continuous,nanoscale phase separation,yielding a morphologically integrated dual-channel architecture that simultane-ously facilitates ion transport through hydrophilic domains and electron transport through interconnected hydrophobic pathways.Importantly,this physical blending approach circumvents the synthetic complexity of copolymer design,enabling precise,modular tuning of side-chain composition and device optimization using only two well-defined parent polymers.Our strategy thus establishes a scalable,reproducible,and highly tunable approach for engineering high-performance OECT channel materials.
年，卷(期)：
2026, 44(16)
机标分类号：
F425
O
H313
在线出版日期：
2026年10月30日
